1. Hoffman, A.S., & B.D. Ratner: ACS Symposium Series31, 1 (1976).
2. Gombotz, W.R. & Hoffman, A.S.: KIENPH “Hydrogels in Medicine & Pharmacy”, Vol. 1, N.A. Peppas, (Ed.), CRC Press, Boca Raton, FL (1986) 95–126.
3. Hanson, S.R., Harker, L.A., Ratner, B.D., & Hoffman, A.S.:KIENPH ”Biomaterials 1980”, G.D. Winter, D.F. Gibbons, & H. Plenk, (Eds.), J. Wiley & Sons, London (1982) 519–521.
4. Mori, Y., et.al., Trans. ASAIO, 28, 459 (1982).
5. Merrill, E.W., and Salzman, E.W., ASAIO J., 6, 60 (1983).